1. Bent valves
2. Caved pistons
3. Burned spark plugs......need I go on?
DON'T DO IT
You can run a higher octane in your engine if you like without worry about doing damage; except to your wallet. If you WANT to "bend valves" and "dish pistons" Camp Stove fuel will do a great job trashing your engine. It has almost a 0 octane rating.
Read "Octane Rating" http://en.wikipedia.org/wiki/Octane_rating here for more details.
In a nutshell, the octane rating describes a fuel's resistance to self- or pre-detonation when compressed, as in "pinging", "knocking" or "Dieseling". These undesirable effects will destroy a spark ignited internal combustion engine quickly and are hence VERY undesirable. For high performance (high compression) engines a higher octane rating is needed to prevent this pre-detonation.
SO, using a higher octane rating in an engine that does not develop relatively "high" cylinder pressures is largely a waste of money.
One point that the above web page makes clearly is that higher octane does NOT denote a slower burn rate for the fuel. Although slowing the burn rate does anecdotally produce a little more power, since power is developed longer throughout the power stroke. This is generally a desirable fuel characteristic that some have achieved by adding water vapor to the fuel/air mixture, which also raises compression slightly. But this is a very different topic… Fact is, most higher-octane fuels do burn slightly slower, or at least ignite slightly later in the stroke. Effectively this equals a small (almost imperceptible really) retarding of the ignition.
So, unless you're going to milling your heads, putting in a 'hot' cam and a "blower" and running at very high RPM much of the time, you neither need nor want a fuel designed for a high compression engine. It just a huge waste of money. You'd do much better re-tuning (reprogramming?) your fuel/air mixtures and timing curves.
BTW, I run a higher than recommended (87) octane fuel in my vehicle (93 usually) because it MEASURABLY lowers engine temperatures and improves my mileage slightly, especially since I tow often, requiring a rather high throttle opening (higher cylinder pressures).
you need a least 91 you can go with lower octane but you will not get the performance plus you will get knock and your timing will be re-tared and lose power and could damage the engine. Hopes this helps.
The owner's manual suggests a rating of 91 octane and further comments that 87 can be used but could cause knocking in the engine.
If it is intermittent it could be your not putting the right octane gasoline in the engine. Normally this will make it ping under load. If it has a clatter from the top of the engine all of the time you probably need to adjust your lifters. This is normally not a problem for today's lifters. Also if the noise is from the bottom of the engine you probably have worn bearings. Hope this helps.
Octane is an oil added to gasoline (petrol) to raise the ignition temperature of the gasoline. This is necessary in gasoline engines with high compression as the heat of compression could cause "pre-ignition" in the engine. That is, ignite the fuel before the spark in the engine cycle. This can cause "knock" or a rattling noise in the engine, damage in the engine and loss of power from the engine. Natural or raw gasoline has an ignition temperature of 536F(280C), octane can raise this as high as 804F(429C) at an octane rating of 100.
Here is the best answer I can give you on this engine. I don't know what type of gasoline you put in this truck, but if it is 89 or below octane, it could cause this problem. I used 89 octane in my RAM for two years and lately I have had the check engine light come on. I had it checked by the Dodge service department and was told that it had two fuel sensors go out because I was using 89 octane gasoline and not putting any gasoline cleaner fuel with it when I filled it up. I would recommend you try this and see if it helps you out.
motor mount could be bad or broken
it could be your oil sending unit
i would imagine it could, but not without alot of work, the Buick engine is fwd while the camaro is rwd, you would need a whole different transmission at the least.
Well for one you could have a cracked head. Or you could have a bad seal on your thermostat though that is were it could be coming from.
I own an 02 Highlander, and sometimes I get a knock when engine is under load, like going up a hill or when accelerating. This is engine knock caused by low octane gas. When I use a mid grade or premium octane, I do not get the sound at all. .
The question is, what octane does the motorcycle require?If it needs 92 or 93, and you mix 87 and 93, you are probably not meeting the requirement. That could damage the engine due to pinging.Lower Octane means a more powerful and hotter explosion. Octane ratings vary, usually due to stroke time or compression ratios which increase the temperature of the air in the cylinder and pre-ignites the gas mixture (pinging), sometimes it has to do with aluminum in the head. If your bike manual asks for 92, put in 92.Lower Octane = More powerful explosion, very short burn time, hotter burnHigh Octane = Weaker and slower explosion, colder burn.Putting higher octane fuel in a lower octane engine usually results in poor perfromance because the power stroke has finished while the fuel is still burning.
Look in your owners manual for the fuel requirements and then take it to a qualified mechanic for a diagnosticAnswerits best to put the recommended fuel octane level in your car that the manufacter says to use if your vehicle says to use 87 octane then use only 87 octane of u use 91 or 92 octane u could actually get worse gas mileage and performance the motor was designed to run on what they sat to use uasually this info is in the gas doof area or your owners manual Answerthe only difference is between premium and regular gas is the premium is 97 octane and regular is 92 and your injectors are the same as the ones in a grand am se and no it would not make your engine light come on
You may be able to change octanes between seasons ( reduce octane in winter ) to obtain the most cost-effective fuel without loss of driveability. The manufacturer's recommendation is conservative, so you may be able to carefully reduce the fuel octane. The penalty for getting it badly wrong, and not realising that you have, could be expensive engine damage. If you use a fuel with an octane rating below the requirement of the engine, the management system may move the engine settings into an area of less efficient combustion, resulting in reduced power and reduced fuel economy. You will be losing both money and driveability. If your vehicle does not have a knock sensor, then using a fuel with an octane rating significantly below the octane requirement of the engine means that the little men with hammers will gleefully pummel your engine to pieces. The bottom line is that you might be able to move to a 89 octane level fuel but it will cause a loss of power & mileage, and may cause engine damage. My advice is to use the exact octane fuel listed in your owner's manual. That way you get to most the engine has to offer, in power & mileage. And you do not take a chance of ending up with engine damage.
It could have an automatic or 5-speed manual
87 Octane Regular. Can higher octane fuels give me more power? On modern engines with sophisticated engine management systems, the engine can operate efficiently on fuels of a wider range of octane rating, but there remains an optimum octane for the engine under specific driving conditions. Older cars without such systems are more restricted in their choice of fuel, as the engine can not automatically adjust to accommodate lower octane fuel. Because knock is so destructive, owners of older cars must use fuel that will not knock under the most demanding conditions they encounter, and must continue to use that fuel, even if they only occasionally require the octane. If you are already using the proper octane fuel, you will not obtain more power from higher octane fuels. The engine will be already operating at optimum settings, and a higher octane should have no effect on the management system. Your driveability and fuel economy will remain the same. The higher octane fuel costs more, so you are just throwing money away. If you are already using a fuel with an octane rating slightly below the optimum, then using a higher octane fuel will cause the engine management system to move to the optimum settings, possibly resulting in both increased power and improved fuel economy. You may be able to change octanes between seasons ( reduce octane in winter ) to obtain the most cost-effective fuel without loss of driveability. Once you have identified the fuel that keeps the engine at optimum settings, there is no advantage in moving to an even higher octane fuel. The manufacturer's recommendation is conservative, so you may be able to carefully reduce the fuel octane. The penalty for getting it badly wrong, and not realising that you have, could be expensive engine damage. Does low octane fuel increase engine wear? Not if you are meeting the octane requirement of the engine. If you are not meeting the octane requirement, the engine will rapidly suffer major damage due to knock. You must not use fuels that produce sustained audible knock, as engine damage will occur. If the octane is just sufficient, the engine management system will move settings to a less optimal position, and the only major penalty will be increased costs due to poor fuel economy. Whenever possible, engines should be operated at the optimum position for long-term reliability. Engine wear is mainly related to design, manufacturing, maintenance and lubrication factors. Once the octane and run-on requirements of the engine are satisfied, increased octane will have no beneficial effect on the engine. Run-on is the tendency of an engine to continue running after the ignition has been switched off, and is discussed in more detail in Section 8.2. The quality of gasoline, and the additive package used, would be more likely to affect the rate of engine wear, rather than the octane rating. Can I mix different octane fuel grades? Yes, however attempts to blend in your fuel tank should be carefully planned. You should not allow the tank to become empty, and then add 50% of lower octane, followed by 50% of higher octane. The fuels may not completely mix immediately, especially if there is a density difference. You may get a slug of low octane that causes severe knock. You should refill when your tank is half full. In general the octane response will be linear for most hydrocarbon and oxygenated fuels eg 50:50 of 87 and 91 will give 89. Attempts to mix leaded high octane to unleaded high octane to obtain higher octane are useless for most commercial gasolines. The lead response of the unleaded fuel does not overcome the dilution effect, thus 50:50 of 96 leaded and 91 unleaded will give 94. Some blends of oxygenated fuels with ordinary gasoline can result in undesirable increases in volatility due to volatile azeotropes, and some oxygenates can have negative lead responses. The octane requirement of some engines is determined by the need to avoid run-on, not to avoid knock. What happens if I use the wrong octane fuel? If you use a fuel with an octane rating below the requirement of the engine, the management system may move the engine settings into an area of less efficient combustion, resulting in reduced power and reduced fuel economy. You will be losing both money and driveability. If you use a fuel with an octane rating higher than what the engine can use, you are just wasting money by paying for octane that you can not utilise. The additive packages are matched to the engines using the fuel, for example intake valve deposit control additive concentrations may be increased in the premium octane grade. If your vehicle does not have a knock sensor, then using a fuel with an octane rating significantly below the octane requirement of the engine means that the little men with hammers will gleefully pummel your engine to pieces. You should initially be guided by the vehicle manufacturer's recommendations, however you can experiment, as the variations in vehicle tolerances can mean that Octane Number Requirement for a given vehicle model can range over 6 Octane Numbers. Caution should be used, and remember to compensate if the conditions change, such as carrying more people or driving in different ambient conditions. You can often reduce the octane of the fuel you use in winter because the temperature decrease and possible humidity changes may significantly reduce the octane requirement of the engine. Use the octane that provides cost-effective driveability and performance, using anything more is waste of money, and anything less could result in an unscheduled, expensive visit to your mechanic. Can I tune the engine to use another octane fuel? In general, modern engine management systems will compensate for fuel octane, and once you have satisfied the optimum octane requirement, you are at the optimum overall performance area of the engine map. Tuning changes to obtain more power will probably adversely affect both fuel economy and emissions. Unless you have access to good diagnostic equipment that can ensure regulatory limits are complied with, it is likely that adjustments may be regarded as illegal tampering by your local regulation enforcers. If you are skilled, you will be able to legally wring slightly more performance from your engine by using a dynamometer in conjunction with engine and exhaust gas analyzers and a well-designed, retrofitted, performance engine management chip.
There most likely will not be any long-term damage. On this tank of gas, you may experience "knocking" or "pinging" in the engine, meaning that the gasoline may ignite prematurely in the cylinder. If the knocking is severe and/or continues for a long time, it could cause engine damage. On the other hand, if the engine runs just fine on the lower-octane fuel, then there's no problem at all.
could use a tune up, plugs, rotor cap, wiring, etc. Use hi octane fuel..
could be a few things, valves need adjustment or if it's a high mileage engine use a heavier engine oil. maybe the engine requires higher octane gas. have some experienced listen to the engine carefully to determine the cause.
It's probably ignition timing or low octane fuel. It COULD be something far more serious though, such as rod bearings.
it could be the horn relay fuse located in the engine department with the other fuses.
Battery could be losing its charge.
Assuming you're referring to engine cylinders, depending on the year it could have 4, 6 or 8
Sounds like it could be vapor locking. Try putting a few wooden clothes pins on fuel line
it could, read the owners manual that came with your car. it will say what kind is recommended, the octane levels in gas vary and if you go to low you could cause your engine to knock and soon after blow.